A cat in the exhaust will only change the afr readings slightly. We have done some comparo's on the dyno with the wideband in different locations and we have found about a 0.1 difference between the front of the car and the back of the car. Keep that in mind if you are tuning with a tail pipe sniffer and all will be well.

Charles

 

Why does Steeter's AF graph from the dyno look like a AF for a car that is NA?

 

I'm going to check the spark plugs later and that will say for sure if there's something wrong.

 

Any updates on your setup Streeter is your engine still running okay?

 

I just waned to add that w/o management the stage 0 at a bit over 200hp is good. For an extra 20hp ...the managment plays a big factor. Its good to start small (like you did w/ the stage0) then get the management ....then FMIC ....then whatever you want. I think your doing a good job and made some good choices. I do like the s/c but I wanted to comment on this setup.

 

He is Stage 1 now... https://www.scionlife.com/forums/viewtopic.php?t=137862

 

thats what i was thinking - i didnt know someone brought an old post back to life.